Radial power device



J.B.GROH

RADIAL} POWER DEVICE Filed Oct. 15, 1929 9 :E Lg E. '2 Z5 Z9 28INVENTOR. J- B. GROH ATTORNEY.

Patented July 7, 1931 PAT NT- O F C 1,

moons-on on; OF LOS ANGELEs, CALIFORNIA RADIAL, rowan pnvioia'Ajiplication filed October. 15,1925. serial No. 399,792.

, This invention relates to improvements'in prime movers. 7

The general object of this invention is to provide an improvedpowe'rmechanism of theradial type. I

A specific object of 'the invention is to provide a radial enginewherein the use of an offset crank is avoided. r

r v Another object of the invention is to provide an engine of theradial type which includes a plurality of cylinders having the pistonstherein connected to a ring which is oscillated by the action of thepistons and wherein the oscillating movement is employed to rotate adrive shaft.

Other objects and the advantages of this invention will be apparent fromthe following description taken in connection with the accompanyingdrawings wherein:

Fig. 1 is a vertical section through my improved engine and I F ig. 2 isa section taken on line 2,2 of Fi 1. V

Zlthough in the following description I refer to my invention anddescribe it as a radial engine it will be understood that my inventivefeatures may be embodied in a pump, motor or other device.

Referring to. the drawings by reference characters I have indicated myimproved engine generally at 10. As shown this engme includes a housing12in which a plurality of radially disposed cylinders 13 are positioned.

The cylinders 13 are shown as 9 in number but it will be understood thatmore or less 7 may be provided as desired. 8

The engine 10 includes a drive shaft 14 and Within each of the cylinders13 there is pro-.

vided a piston 15, each of which with one ally secured as at 18 to aringmember 19. The one piston referred to is pivotally secured as at 20to an arm 21 which is rigidly secured to the ring 19' or is integraltherewith as shown. I

Secured on the drive shaft 14 as by a drive fit I provide'a ball bearingmember 24 which is positioned in a groove 25 in'the ring member 19.Secured to the drive shaft 14interv peated.

i exception has pivotally secured thereto as at.

16 a connecting rod 17 which inturn is pivot- V "an axis eccentrictosaid shaft.

mediate its length as by a key26 I provide an'arm 27 which has a shaft28*mounted adj acent one endthereof. The shaft has a rotat'able roller29 mounted thereon. This roller/29 is positioned the groove 25 in whichthe ballbearingmember 24: is ar ranged to move. Adja'cent'theend of thearm 27 opposite the roller 29 I preferably provide a counter weightportion 30. i

The fuel and ignition systems and the valve mechanism may be of anydesired type audit is not believed necessary to illustrate and describethe same.

In operation when the Number 1 cylinder firesasshown in- Fig. 1 theconnecting rod 17 thereof pushes the ring member 19 downward and to oneside which movementcauses the arm 27 to move in a clockwise direction,there by rotating the drive shaft 14. Before the Number 1 cylinder hasreachedthe limitof its firing stroke the Number 3 cylinder fires andsoon aroundall the odd numbered cyl inders, thus every other cylinderfires until one complete revolution of the drive shaft is made. Afterthis occurs the even numbered cylinders fire during one revolution ofthe drive 'shaft and then the operation is re- From the foregoing''description it willbe seen that I have invented a radia-l mover whichis highly'efficient, *Iclaim; 4 f 1.; In a rotary mechanismhavinga-drive shaft,aring memb'er positioned around said shaft, a member on"said shaft, a portion of said shaft engaging said last-mentionedInember, an'arm secured to said shaft, a rotatable membersupportedon'said arm adjacent one end thereof, sa d rotatable member engagingsaid ring member opposite said'shaft member and means to move said ringmember about her, an arm secured to said shaft, a rotatable membersupported. on said arm adjacent one end thereof, .saidrotatable memberengaging. sa d ring'opposite said shaftmember, and

means to eccentrically oscillate said ring member.

3. In a mechanical movement having a drive shaft, a ring memberpositioned around said shaft, an antifriction member on said shaft, agroove on the inner surface of said ring member, a portion of saidantifriction member being positioned in said ring groove, an arm, saidarm being secured intermediate its length to said shaft, a rollerrotatably supported on said arm adjacent one end there'- of, said rollerbeing positioned in said ring groove opposite to said antifrictionmember, a counterweight member on said arm adjacent the end thereofopposite said roller, and means to oscillate said ring member to therebyrotate said arm and to rotate said drive shaft.

4. In an engine having a drive shaft, a plurality of cylinders radiallypositioned around said drive shaft, a piston in each of said cylinders,aring member positioned around said shaft, said pistons each having oneend of a connecting rod pivotally secured thereto with the opposite endsof said connecting rods pivotally secured to said ring member, a membermounted on said shaft, and movably engaging said ring member, an armsecured to said shaft, a rotatable member supported on said arm adjacentone end thereof, said rotatable member movably engaging said ringopposite said shaft member, said pistons when actuated being adapted tooscillate said ring member to thereby move said arm to thereby rotatesaid drive shaft.

5. In an engine having a housing, a drive shaft, a plurality ofcylinders on said housing radially positioned around said drive shaft,:1 piston in each of said cylinders, a ring member positioned aroundsaid shaft, a connecting arm rigidly secured to said ring and pivotallysecured to one of said pistons, the other of said pistons each havingone end of a connecting rod pivotally secured thereto with the opposite:end of each connecting rod pivotally secured to said ring member,an-antifriction member on said shaft, a groove on the inner surface ofsaid ring member, a portion of said antifriction member positioned insaid ring groove, an arm, said arm being secured to said shaftintermediate its length, a roller rotatably supported on said armadjacent an end thereof, said roller being positioned in said ringgroove opposite said antifriction member, a counterweight member on saidarm adjacent the end thereof opposite said roller, said pistons whenactuated being adapted to oscillate said ring member to thereby movesaid arm and said arm being adapted to rot-ate said drive shaft.

6. In an engine having a drive shaft, a plurality of cylinders radiallypositioned around said drive shaft, a piston in each of said cylinders,a ring member positioned around said shaft, a member rotatable on saidshaft and engaging the interior of said ring member, an arm membersecured to and rotatable with said shaft, means on said arm memberengaging the interior of said ring member whereby said arm member isgiven movement by said ring member and means whereby said pistons drivesaid ring member.

7. In an engine having a drive shaft, a plurality of cylinders radiallypositioned around said drive shaft, a piston in each of said cylinders,a ring member positioned around said shaft, means connecting saidpistons and said ring member, means supporting said ring member wherebywhen said pistons operate said ring member is oscillated, and meansmovable around the surface of said ring member and rigid with said shaftto cause. said shaft to rotate. I

In testimony whereof, I hereunto affix my signature.

' JACOB B. GROH.

